Abstract
Schmallenberg virus (SBV) is an emerging and rampant arbovirus in Europe, and even Africa and West Asia. Investigating whether SBV existed in new regions or countries, it was very helpful for the early warning and control of SBV. In this study, we collected 317 serum samples (n=242 for dairy cattle, n=13 for yellow cattle, n=21 for buffalo, and n=41 for goats) from Guangdong province of southern China, which is located in a subtropical region and is an important distribution area for arboviral diseases. A commercial competitive enzyme-linked immunosorbent assay (cELISA) kit and a previously established real-time PCR were used to detect SBV antibody and RNA in those serum samples. Via testing, serological evidence of SBV was confirmed, with total positive rates (57.4, 15.4, 19, and 9.8%) in dairy cattle, yellow cattle, buffalo, and goats, respectively, while no positive signal for SBV RNA was found. To summarize, this study for the first time provided preliminary serological evidence of SBV infection in China, East Asia. Further investigations on molecular evidence, origin, and pathogenesis of SBV in ruminants needed to be studied in China.
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